Riadh Marzouki

King Khalid University

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Mohamed Faouzi Zid

Tunis University

Youssef Ben Smida

University of Carthage

Aissa Abderrahmane

Université Mustapha Stambouli de Mascara

Ameni Brahmia

King Khalid University

Savaş Kaya

Sivas Cumhuriyet Üniversitesi

Ismat H. Ali

King Khalid University

Obai Younis

Prince Sattam Bin Abdulaziz University

Lei Guo

Tongren University

Samuel Georges

Hôpital Necker-Enfants Malades

Kamel Guedri

Umm al-Qura University

Cooperative Institutions

King Khalid University

Tunis El Manar University

Tunis University

Chinese Academy of Sciences

Centre National de la Recherche Scientifique

Chongqing University

Prince Sattam Bin Abdulaziz University

University of Carthage

University of Chinese Academy of Sciences

Research and Technology Center of Energy

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Polycrystalline Powder Synthesis Methods

IntechOpen eBooks (2022)

M. Jemmali Basma Marzougui Youssef Ben Smida Riadh Marzouki M. Triki

The synthesis of polycrystalline powder is a key step for materials sciences. In this chapter, we present the well-known methods of preparation of powders such as: solid-state reaction, sol–gel, hydrothermal, combustion, co-precipitation. Moreover, synthesis methods by arc furnace, by heating in a “high frequency” induction furnace and by high energy grinding are presented. The obtained powders could be defined by their purity, gain size, crystallinity, and morphology, which are influenced by the synthesis method. In addition, each method is dependent on some parameters like pH, concentration and temperature.

Hydrothermal Synthesis

10.5772/intechopen.97006

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Citations (3)

Adsorption study of N (-benzo[d]thiazol-2-yl)-1-(thiophene-2-yl) methanimine at mild steel/aqueous H2SO4 interface

Surfaces and Interfaces (2022)

Ashish Kumar Singh Manjeet Singh Sanjeeve Thakur Balaram Pani Savaş Kaya

10.1016/j.surfin.2022.102169

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Citations (28)

Application of Carrera unified formulation and innovative artificial intelligence algorithm to study thermal buckling properties and structural optimization of fiber-reinforced concrete structures surrounded by auxetic foundations

Mechanics of Advanced Materials and Structures (2024)

H.Q. Duan Gongxing Yan Tamim Alkhalifah Riadh Marzouki

This study investigates the thermal buckling behavior and structural optimization of multi-hybrid nanocomposite-reinforced concrete annular sector plates supported by auxetic foundations. Utilizing the Carrera unified formulation (CUF), a versatile higher-order theory is applied to capture the complex thermo-mechanical interactions in these advanced materials. The multi-hybrid nanocomposites are engineered by combining conventional reinforcement with nanoscale fillers to enhance stiffness, and thermal stability. The CUF framework facilitates the accurate representation of material behavior, geometric, and boundary conditions (BCs), allowing for a comprehensive analysis of the system's thermal buckling response. An innovative artificial intelligence (AI) algorithm is employed to validate and further refine the results obtained from the analytical models. This AI-based approach ensures robust verification and provides deeper insights into the parameter sensitivities affecting the structural performance. Additionally, the optimization process focuses on minimizing weight and maximizing thermal resistance while adhering to design constraints imposed by the auxetic foundation, known for its unique negative Poisson's ratio properties. The findings reveal the pivotal role of nanocomposite configurations and auxetic foundation properties in determining the critical buckling temperature and structural integrity. The integration of CUF with AI offers a powerful methodology for exploring complex design spaces, leading to enhanced performance and innovative solutions in engineering applications. This research bridges advanced material science, structural mechanics, and computational intelligence, paving the way for optimized designs in next-generation construction and aerospace systems.

Auxetics

10.1080/15376494.2024.2439545

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Application of the Carrera unified formulation and machine learning for vibration analysis of composite structures as the main part of construction robotics

Mechanics of Advanced Materials and Structures (2025)

Yun Zeng Zhiming Ding Shuzhen Chen Tamim Alkhalifah Riadh Marzouki

10.1080/15376494.2024.2447065

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Utilizing nanotechnology to boost the reliability and determine the vertical load capacity of pile assemblies

Environmental Research (2024)

Zhijun Xu Zhengquan Wang Du Jianping Sami Muhsen Hamad Almujibah

Nanosensor

Granularity

10.1016/j.envres.2024.118457

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2D MHD Mixed Convection in a Zigzag Trapezoidal Thermal Energy Storage System Using NEPCM

Nanomaterials (2022)

Aissa Abderrahmane Obai Younis Mohammad Al-Khaleel Houssem Laidoudi Nevzat Akkurt

In a magnetic field, two-dimensional (2D) mixed convection is investigated within a zigzagged trapezoidal chamber. The lower side of the trapezoidal chamber is irregular, in particular, a zigzagged wall with different zigzag numbers N. The fluid particles move in the room due to the motion of the upper wall, while the porosity-enthalpy approach represents the melting process. The thermal parameters of the fluid are enhanced by what is called a nano-encapsulated phase change material (NEPCM) consisting of polyurethane as the shell and a nonadecane as the core, while water is used as the base fluid. In order to treat the governing equations, the well-known Galerkin finite element method (GFEM) is applied. In addition, the heat transfer (HT) irreversibility and the fluid friction (FF) irreversibility are compared in terms of the average Bejan number. The main results show that the melt band curve behaves parabolically at smaller values of Reynolds number (Re) and larger values of Hartmann number (Ha). Moreover, minimizing the wave number is better in order to obtain a higher heat transfer rate.

Hartmann number

Darcy number

Zigzag

Heat transfer enhancement

10.3390/nano12193270

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Citations (21)

Effect of Different Annealing Temperatures on the Performance of Electrodeposited Cobalt Oxide Thin Films Used to Fabricate Supercapacitor Electrodes

Chemistry Africa (2024)

I. Ben Assaker Zoubaida Landolsi Ichraf Chérif Riadh Marzouki Sherif M. A. S. Keshk

Cobalt oxide

10.1007/s42250-023-00862-6

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Citations (2)

Enhancing thermal performance of phase change-based storage units using T-fin levels

Journal of Energy Storage (2024)

Naef A.A. Qasem Aissa Abderrahmane Abdeldjalil Belazreg Umar F. Alqsair Riadh Marzouki

Fin

Phase-change material

10.1016/j.est.2024.112135

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Citations (3)

Gum Arabic-Magnetite Nanocomposite as an Eco-Friendly Adsorbent for Removal of Lead(II) Ions from Aqueous Solutions: Equilibrium, Kinetic and Thermodynamic Studies

Separations (2021)

Ismat H. Ali Mutasem Z. Bani‐Fwaz Adel A. El‐Zahhar Riadh Marzouki M. Jemmali

In this study, a gum Arabic-magnetite nanocomposite (GA/MNPs) was synthesized using the solution method. The prepared nanocomposite was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), and thermogravimetric analysis (TGA). The prepared composite was evaluated for the adsorption of lead(II) ions from aqueous solutions. The controlling factors such as pH, contact time, adsorbent dose, initial ion concentration, and temperature were investigated. The optimum adsorption conditions were found to be 0.3 g/50 mL, pH = 6.00, and contact time of 30 min. The experimental data well fitted the pseudo-second-order kinetic model and the Langmuir isotherm model. The maximum adsorption capacity was determined as 50.5 mg/g. Thermodynamic parameters were calculated postulating an endothermic and spontaneous process and a physio-sorption pathway.

Thermogravimetric analysis

Langmuir adsorption model

Endothermic process

10.3390/separations8110224

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Citations (15)

Cobalt Phosphates and Applications

IntechOpen eBooks (2019)

Riadh Marzouki M.A. Sayed Mohsen Graia Mohamed Faouzi Zid

Cobalt phosphates with open framework present various physical performances in relation to their structures. In fact, the development of new materials that could potentially be ionic conductors or ion exchangers led us to examine the Co-P-O and A-Co-P-O crystallographic systems (A: monovalent cation) and their different methods of synthesis. This work consists first of all in highlighting the crystalline phases of cobalt phosphates. Indeed, many works related to the discovery of some of these materials with interesting properties, in particular ionic conductivity, motivated our research and encouraged us to collect several cobalt phosphates and to correlate structure-physical properties in particular electrical properties.

10.5772/intechopen.86215

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Citations (3)